SqlTransaction.Rollback Method (String)
Rolls back a transaction from a pending state, and specifies the transaction or savepoint name.
Assembly: System.Data (in System.Data.dll)
The Rollback method is equivalent to the Transact-SQL ROLLBACK TRANSACTION statement. For more information, see "Explicit Transactions" and "Transaction Savepoints" in SQL Server Books Online.
The transaction can only be rolled back from a pending state (after BeginTransaction has been called, but before Commit is called). The transaction is rolled back if it is disposed before Commit or Rollback is called.
Try/Catch exception handling should always be used when rolling back a transaction. A Rollback generates an InvalidOperationException if the connection is terminated or if the transaction has already been rolled back on the server.
For more information on SQL Server transactions, see "Explicit Transactions" and "Coding Efficient Transactions" in SQL Server Books Online.
The following example creates a SqlConnection and a SqlTransaction. It also demonstrates how to use the BeginTransaction, Commit, and Rollback methods. The transaction is rolled back on any error. Try/Catch error handling is used to handle any errors when attempting to commit or roll back the transaction.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.